Do This Five Minute Test Before You Call Anyone
The meter test costs nothing and tells you whether you have a leak at all. Plenty of people pay for a detection visit when a dripping toilet flapper was the whole problem, and plenty of others ignore a real leak for months because nothing is visible.
- Close everythingEvery tap, the dishwasher, the washing machine, the irrigation timer. Nothing running.
- Read the meterNote the numbers and the position of the small dial or triangle.
- Wait thirty minutesDo not use any water at all in that time, including flushing.
- Read it againAny movement means water is going somewhere it should not.
Moved? Something is leaking inside the system and worth locating properly. Did not move but you still see damp? The water is coming from outside the pressurised pipework, often a waste line or rainwater. Either way, tell us what the meter did and it saves time on site.
Finding It Is The Job.
Fixing It Is The Easy Part
A leak that has already been located is usually a straightforward repair. The expensive mistake is opening walls and floors to look for it, which is how a small weep turns into a rebuilt bathroom and a leak that is still running.
ProFix Emergency Plumbing provides leak detection in Pasadena and across the San Gabriel Valley, including Altadena, Arcadia, and San Marino. Slab leaks, wall and ceiling leaks, irrigation lines, pool lines, and waste pipes.
You get a location, photographs, and a plain explanation of what is leaking and why. From there the repair is quoted separately, so you are free to take that work elsewhere if you want to. Most people do not, but the choice matters.
Water bill jumped for no reason?
That is the most common way a hidden leak announces itself. Run the meter test above, then send us the reading.
Call +1 (747) 737-3868Nine Kinds Of Leak
We Trace Every Week
Every visit ends with a marked location, photographs, and a written note of what the equipment showed.
Slab Leak Detection
Supply lines under concrete, located acoustically from above so the slab is opened at one point rather than several.
Book a Visit +1 (747) 737-3868Wall & Ceiling Leaks
Stains that keep spreading. Thermal imaging and moisture meters show the wet area and the direction the water is travelling from.
Get a Quote +1 (747) 737-3868High Water Bill Investigation
A bill that climbed with no change in use. We confirm whether the loss is real, then find where it is going.
Request a Quote +1 (747) 737-3868Pool & Spa Line Leaks
A pool losing more than evaporation accounts for. Return lines, skimmers, and plumbing runs pressure tested section by section.
Book a Visit +1 (747) 737-3868Irrigation & Yard Lines
Soft ground, a patch of grass greener than the rest, or a sprinkler zone that never builds pressure.
Get a Quote +1 (747) 737-3868Water Heater & Fixture Leaks
Water around the base of a heater, or a fixture weeping where you cannot see it. Traced to the fitting that has failed.
Water HeatersPipe Leaks & Pinholes
Once we have the location, the repair follows. Cut out, replaced, pressure tested, and closed up properly.
Pipe RepairSewer & Drain Line Leaks
Camera inspection where a waste line is suspected, showing cracks, separated joints, and root intrusion.
Sewer RepairEmergency Leak Response
Water running now, a ceiling about to give way, or a tenant call that cannot wait. Lines answered 24 hours.
Emergency PlumbingSix Signs Of A Leak
You Cannot See Yet
A hidden leak gives itself away long before the damage shows. These are the signs worth acting on.
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Water bill climbing on its own
The most reliable early sign there is. Nothing else explains it.
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Warm or damp spot on the floor
Classic slab leak on a hot water line. Worth moving on quickly.
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Running water with taps closed
A hiss or trickle in the walls at night, when the house is quiet.
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Musty smell that will not clear
Water in a cavity long enough for mould to get started.
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Cracks or lifting flooring
Tile lifting, wood cupping, or a hairline crack tracking across a slab.
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One green patch in a dry yard
An irrigation or supply line feeding the lawn underground.
The Equipment
And What Each One Does
No single method finds every leak, which is why anyone offering one tool for every job is guessing part of the time. The leak decides which equipment comes out of the van.
Why Choose ProFix For
Leak Detection?
Equipment, Not Guesswork
Acoustic, thermal, pressure, and camera. The leak decides the method, not what happens to be on the van.
Findings In Writing
A marked location, photographs, and an explanation you can hand to an insurer or a landlord.
Licensed & Insured
California-licensed technicians carrying insurance, working to local plumbing code.
Minimal Damage
The whole point is finding it without opening the building up. One hole in the right place.
Answered 24 Hours
An active leak does not wait for office hours, so neither does the phone.
Homes, Rentals & Commercial
Single family homes, apartments, HOAs, and commercial premises across Greater LA.
Four Steps From Call
To Marked Location
Confirm There Is A Leak
Meter test and an isolation check, so we are not hunting something that is not there.
Narrow It To A Zone
Sections isolated and pressure tested to prove which run is losing water.
Pinpoint It
Acoustic, thermal, tracer gas, or camera, depending on what the pipe and the surface allow.
Report And Quote
Location marked, photographs taken, and the repair priced so you can decide what happens next.
Water Leak Detection
In Pasadena, CA
Leak Detection Services In Pasadena
ProFix Emergency Plumbing provides leak detection in Pasadena for homes, rentals, and commercial premises across our full service area. Detection is a separate skill from repair, and it is worth treating that way. A located leak is a small job. An unlocated one is a series of holes and a bill that keeps growing while the water keeps running.
Slab Leak Detection Under Concrete Floors
A great many local properties have supply lines cast into or running beneath a concrete slab, and that is where the most expensive leaks hide. The signs are quiet. A warm patch underfoot, flooring lifting in one area, a bill rising month on month, or the sound of water with nothing switched on. Acoustic equipment hears the escaping water through the slab, which means the concrete gets opened once at the right spot instead of being chased across a room.
Finding Leaks Behind Walls And Ceilings
Water travels along joists and down the inside of walls, so where it appears is almost never where it started. Thermal imaging shows the spread, moisture metering shows where it is wettest, and pressure testing confirms which pipe is responsible. Opening the ceiling under a stain and hoping is how people end up repairing the same room twice.
High Water Bills And Hidden Losses
A bill climbing with no change in habits is the most common reason people call. Before anything else, run the meter test at the top of this page, because the result changes what we bring. A leak on the pressurised side shows on the meter. A failed waste line or an irrigation valve does not always, and those are found differently. Either way, the loss is usually continuous, which is why acting on it in a week rather than six months is the whole saving.
Once The Leak Is Found
Most located leaks turn out to be a straightforward repair on a single section of pipe. Where the pipe itself has reached the end, pipe repair and repiping is the next step. Where the problem is a waste line rather than a supply line, sewer repair and drain cleaning cover that side. Repairs are quoted separately from the detection visit, so the two are never bundled into one figure you cannot check.
Gas Leaks Are An Emergency, Not A Detection Job
If you can smell gas, do not run a test and do not wait for a plumber. Leave the building, avoid switches and flames, and call SoCalGas on 1-800-427-2200 from outside. For gas pipework that has already been made safe, see our gas line installation and repair page.
Your Local Leak Detection Team
Lines are answered 24 hours a day, holidays included. An active leak falls under our emergency plumbing service. For a planned visit, an insurance report, or a second opinion on someone else's findings, send us the details, or browse all our services.
Questions Before
You Book
Finding it, yes, in the great majority of cases. Acoustic, thermal, pressure, and tracer gas methods all work through the surface rather than into it. Reaching the pipe to repair it is a different matter, and that usually needs one opening. The aim of the detection visit is to make sure that opening is in exactly the right place.
On a pressurised line under a slab, usually within a foot or so, which is close enough to open one small section. Accuracy drops where the pipe is very deep, where the leak is tiny, or where the surface above is loose fill rather than solid. If a leak is one of the awkward ones, we will tell you that on site rather than pretending to a precision the equipment cannot give.
Entirely, and it is the most common version of this problem. Water escaping under a slab or into soil drains away without ever surfacing, so the bill is the only symptom for months. Run the meter test at the top of this page first. If the dial moves with everything closed off, the loss is real and inside your system.
Yes, and in many cases on the same visit if the pipe is accessible and we have the parts. The two are priced separately though, so you see what the detection cost and what the repair costs rather than one combined figure. If you would rather take the repair elsewhere with our report in hand, that is fine.
Very often, and the ones that do want it in writing with photographs. We are plumbers rather than insurers, so check your own policy wording, but the usual pattern is that sudden escape of water is covered while long-term seepage is argued over. Documented findings and dates help either way, which is why you get them as standard.
Leave the building first and call SoCalGas on 1-800-427-2200 from outside. Do not switch anything on or off, and do not wait for a plumber. A suspected gas leak is a utility emergency, not a detection appointment. Once the supply has been made safe, we can take on the pipework repair through our gas line service.
Leak Detection Service Areas
Dispatch runs from our Pasadena base, so nearby cities get the shortest response times on an active leak. Not on the list? Send us the address and we will tell you honestly whether we can reach you.
Water Going
Somewhere It Should Not?
Call ProFix Emergency Plumbing and we will confirm the loss, pinpoint it with the right equipment, and hand you a location with photographs rather than a guess.